QJ1040-N2-MPAFAGBall

Name: FAG QJ1040-N2-MPA Ball Bearing
Brand: FAG
SKU: QJ1040-N2-MPA

QJ1040-N2-MPA is a FAG ball bearing, bore 200 mm, O.D. 310 mm, width 51 mm, dynamic rating 390 kN. Dimensions, drawing, interchanges and price.

Brass cage

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Bore d200mm

Outside dia. D310mm

Width B51mm

Dynamic Cr390kN

Static C0r620kN

Limiting speed3,600rpm

Weight15kg

Cr / C0r0.63

Mean dia. dm255mm

Original catalogue drawing - FAG Schaeffler HR 1, page 364

QJ1040-N2-MPA FAG Ball bearing catalogue drawing

Scanned from the manufacturer catalogue page listing this part number. All part numbers printed on that table share the same drawing.

Scale cross-section

Blue = inner / outer ring, yellow = rolling element. Drawn to scale from this part's own dimensions for selection reference only - not a manufacturing or assembly drawing.

Dimension table (mm / inch)

Symbol	Dimension	mm	inch
d	Bore diameter	200	7.874
D	Outside diameter	310	12.2047
B	Inner-ring / bearing width	51	2.0079
r	Chamfer (min)	2.1	0.0827

Notes

Weights are given in kg. Load ratings are shown in both the original catalogue units and the converted value (1 N = 0.2248 lbf). Data is provided for selection reference only - confirm against the latest official catalogue before ordering.

Main dimensions

Bore d (mm)	200
Outside dia. D (mm)	310
Width B (mm)	51
Inner-ring OD d1 (mm)	238.9
Inner-ring shoulder dia. D1 (mm)	271.5

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	87675
Basic static load rating Cor (lbs)	139382
Basic dynamic load rating Cr (N)	390000
Basic static load rating C0r (N)	620000
Fatigue limit load Cur (N)	21300
Limiting speed nG (rpm)	3,600
Reference speed nB (rpm)	1,890
Effective load centre a (mm)	179

Weight

Weight (kg)	15.0

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	2.1
Shaft shoulder da (mm)	210.2
Housing shoulder Da (mm)	299.8
Housing fillet ra max (mm)	2.1

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 1,200 rpm
4	97,500	64	889
6	65,000	216	3,000
8	48,750	512	7,111
10	39,000	1,000	13,889
15	26,000	3,375	46,875

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 390,000 N. Hours = L₁₀ x 10⁶ / (60n). Life-modification factors for lubrication, contamination and temperature (a_ISO) are not included.

Source & traceability

Brand	FAG
Source catalogue	FAG / Schaeffler Rolling Bearings HR 1
Catalogue page	p.364 (dimensions)

Load ratings in newtons, fatigue limit load Cur, limiting speed nG and reference speed nB.

Interchange - same dimensions, other brands

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
6040	NSK	Ball	200	310	51	46,500 lbs	14.061
1040	NSK	Cylindrical Roller	200	310	51	88,000 lbs	14.061
NU1040	NSK	Cylindrical Roller	200	310	51	480 kN	14
7040	NSK	Precision / Angular Contact	200	310	51	264 kN	13.7
7040A5	NSK	Precision / Angular Contact	200	310	51	48,300 lbs	13.703
7040C	NSK	Precision / Angular Contact	200	310	51	59,500 lbs	13.503

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
6040-M	FAG	Ball	200	310	51	231 kN	14.4
NU1040-M1	FAG	Cylindrical Roller	200	310	51	470 kN	14.1
NU1040-XL-M1	FAG	Cylindrical Roller	200	310	51	470 kN	14.1
B7040-C-T-P4S	FAG	Precision / Angular Contact	200	310	51	305 kN	11.6
B7040-E-T-P4S	FAG	Precision / Angular Contact	200	310	51	290 kN	11.5

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
16040	FAG	Ball	200	310	34	186 kN	9
6040-M	FAG	Ball	200	310	51	231 kN	14.4
61840	FAG	Ball	200	250	24	74 kN	2.35
61940	FAG	Ball	200	280	38	158 kN	6.27
6240-M	FAG	Ball	200	360	58	270 kN	27
6340-M	FAG	Ball	200	420	80	380 kN	56.6
QJ240-N2-MPA	FAG	Ball	200	360	58	510 kN	28

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